Tectonic Plate Motion

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Across
  1. 4. The layer of soft, solid rock underneath Earth's surface
  2. 7. Moving towards each other
  3. 9. How often or how fast something happens
  4. 10. The place where 2 plates meet
Down
  1. 1. A set of interacting parts forming a complex whole
  2. 2. An indentation in the ocean floor where 2 plates move together
  3. 3. Moving apart from each other
  4. 5. Hot, liquid rock on the surface of Earth
  5. 6. An object, diagram, or computer program to help us understand something
  6. 8. Something observed to be similar over and over again